Light string unit

Abstract

The present application provides a light string unit, including: a plurality of light-emitting bodies; and a conducting wire, configured to electrically connect the light-emitting bodies in series, opposite ends of the conducting wire being connected to positive polarity and negative polarity of an external power supply circuit or an external power source, respectively. Wherein, the conducting wire is a high-tensile conducting wire which includes: a conductive core wire; an insulated coating, configured to encapsulate the conductive core wire; and a tensile resistant cord, set inside the insulated coating and set parallelly or twisted with the conductive core wire to enhance the tensile strength of the conducting wire. In the present application, the tensile resistant cord enhances the tensile strength of the conducting wire, and completely reaches or even exceeds the requirement on tensile strength of a conducting wire in the UL 588 criterion and has a simplified structure.

What is claimed: 
     
       1. A light string unit, comprising:
 a plurality of light-emitting bodies; and 
 a conducting wire, configured to electrically connect the light-emitting bodies in series, opposite ends of the conducting wire being connected to positive polarity and negative polarity of an external power supply circuit or an external power source, respectively, 
 wherein, 
 the conducting wire being a high-tensile conducting wire which includes: 
 a conductive core wire; 
 an insulated coating, configured to encapsulate the conductive core wire; and 
 a tensile resistant cord, set inside the insulated coating to enhance the tensile strength of the conducting wire; 
 wherein the tensile resistant cord and the conductive core wire are integrally formed in the insulated coating, and the tensile resistant cord is around an outer wall of the conductive core wire. 
 
     
     
       2. The light string unit according to  claim 1 , wherein
 the tensile resistant cord is one of non-metallic cotton thread, non-metallic yarn or non-metallic plastic thread. 
 
     
     
       3. The light string unit according to  claim 1 , wherein
 the tensile resistant cord is one of insulating layer coated aluminum wire, insulating layer coated iron wire or insulating layer coated copper wire. 
 
     
     
       4. The light string unit according to  claim 1 , wherein
 the tensile resistant cord is a combination of two of non-metallic cotton thread, non-metallic yarn or non-metallic plastic thread, or a combination of two of insulating layer coated aluminum wire, insulating layer coated iron wire or insulating layer coated copper wire, or a combination of one of non-metallic cotton thread, non-metallic yarn or non-metallic plastic thread and one of insulating layer coated aluminum wire, insulating layer coated iron wire or insulating layer coated copper wire. 
 
     
     
       5. A light string unit, comprising:
 a plurality of light-emitting bodies; and 
 a conducting wire, configured to electrically connect the light-emitting bodies in series, opposite ends of the conducting wire being connected to positive polarity and negative polarity of an external power supply circuit or an external power source, respectively, 
 wherein, 
 the conducting wire being a high-tensile conducting wire which includes: 
 a conductive core wire; 
 an insulated coating, configured to encapsulate the conductive core wire; and 
 a tensile resistant cord, set inside the insulated to enhance the tensile strength of the conducting wire; 
 wherein the tensile resistant cord and the conductive core wire are integrally formed in the insulated coating, and the tensile resistant cord is around an outer wall of the conductive core wire; 
 wherein the tensile resistant cord is an insulating layer coated aluminum wire. 
 
     
     
       6. A light string unit, comprising:
 a plurality of light-emitting bodies; and 
 a conducting wire, configured to electrically connect the light-emitting bodies in series, opposite ends of the conducting wire being connected to positive polarity and negative polarity of an external power supply circuit or an external power source, respectively, 
 wherein, 
 the conducting wire being a high-tensile conducting wire which includes: 
 a conductive core wire; 
 an insulated coating, configured to encapsulate the conductive core wire; and 
 a tensile resistant cord, set inside the insulated to enhance the tensile strength of the conducting wire; 
 wherein the tensile resistant cord and the conductive core wire are integrally formed in the insulated coating, and the tensile resistant cord is around an outer wall of the conductive core wire; 
 wherein the tensile resistant cord is a combination of two insulating layer coated aluminum wires.